Cables
Caution
You must operate the NI 6589 with shielded cables and shielded
accessories to ensure compliance with the EMC requirements defined in
the NI 6589 Specifications. Do not use unshielded cables or accessories
unless they are installed in a shielded enclosure with properly designed
and shielded input/output ports and are connected to the NI 6589 using a
shielded cable. If unshielded cables or accessories are not properly
installed and shielded, the EMC specifications for the NI 6589 are no longer
guaranteed.
Use a shielded 50 Ω coaxial cable with an SMA plug end to connect to the PFI 0 and
CLOCK IN connectors on the NI 6589 front panel. Use the NI SHB12X-B12X shielded
cable (NI part number 192344-01) or the NI SHB12X-H3X24 differential flying-lead
cable (NI part number 196236-1R5) to connect to the DDC connector. You can also
connect the NI SMA-2164 accessory to the NI 6589 through the SHB12X-B12X
shielded cable for testing and debugging.
Note
If you design a custom cabling solution with the DDC connector
(779157-01) and SHB12X-B12X shielded cable (192344-01), the NI 6589
pinout is reversed at the end connector. For example, the signal shown on
pin 1 maps to pin 73 at the end connector.
The following NI cables and accessories are not properly shielded for EMC-
compliant use with the NI 6589:
■
NI SMA-2164 accessory
■
NI SHB12X-H3X24 differential flying-lead cable
Note
Whether you use NI cables and accessories or design your own,
terminate cables properly to avoid improper measurements caused by
signal reflections, overshoot, and undershoot.
ni.com
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NI-6589
Summary of Contents for NI-6589
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